CTD problems

[Madtrack]

well now I'm completely lost, I did a complete reinstall up to the point when everything was working correctly, without installing france 1 which
broke my previous install

So I'm off and happy to do start a new flight and 3 minutes after departure ... staring at my desktop again with no error message, nothing in the
event log but an ID=0 error and no further info

I really don't understand, everything was working correctly (for a week) until I installed france 1, ok fine, no problem, I wipe uninstall all add-ons
and delete all FS9 folders and whatnot, reinstall everyhting up to the exact same point as the day before when all was working correctly and the CTD
came back, where's the logic in that ?

the only other thing I had done this day was to register and upgrade FSUIPC to the latest version, could that be it ? (seems far streched given how
widespread and popular the program is, and I had the problem before that anyways)

I tried all this :
modifiying the terrain.cfg, disabling options in UT, removing duplicate AFCAD files, disabling scenery,
I also uninstalled all UT completely, restored standard FS9 textures, then installed UT USA + Canada + Europe (+ patchs) in that order, then installed
FE + GE and installed the lastest drivers for my soundcard and graphics card (at least I fiexed my screeching sound problem when using add-ons
aircraft with that heh) and looking into potential overheat issues

I admit it, I'm out of ideas, any help would be appreciated